Dino Viehland 07525c9a85 gh-116818: Make sys.settrace, sys.setprofile, and monitoring thread-safe (#116775) ...

Makes sys.settrace, sys.setprofile, and monitoring generally thread-safe.

Mostly uses a stop-the-world approach and synchronization around the code object's _co_instrumentation_version.  There may be a little bit of extra synchronization around the monitoring data that's required to be TSAN clean.

2024-04-19 14:47:42 -07:00

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